package login;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
@WebServlet("/index")
public class IndexServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        HttpSession session=req.getSession(false);
        if (session==null){
            resp.sendRedirect("login.html");
            return;
        }
        Integer visitCount= (Integer) session.getAttribute("visitCount");
        visitCount++;
        session.setAttribute("visitCount",visitCount);
        String username= (String) session.getAttribute("username");
        resp.setContentType("text/html;charset=utf8");
        resp.getWriter().write("当前用户为: " + username +" 访问次数为"+visitCount);
    }
}
